GB9311694D0 - Electric machine rotor prosition encoder - Google Patents

Electric machine rotor prosition encoder

Info

Publication number
GB9311694D0
GB9311694D0 GB939311694A GB9311694A GB9311694D0 GB 9311694 D0 GB9311694 D0 GB 9311694D0 GB 939311694 A GB939311694 A GB 939311694A GB 9311694 A GB9311694 A GB 9311694A GB 9311694 D0 GB9311694 D0 GB 9311694D0
Authority
GB
United Kingdom
Prior art keywords
prosition
encoder
electric machine
machine rotor
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB939311694A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec SR Drives Ltd
Original Assignee
Nidec SR Drives Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nidec SR Drives Ltd filed Critical Nidec SR Drives Ltd
Priority to GB939311694A priority Critical patent/GB9311694D0/en
Publication of GB9311694D0 publication Critical patent/GB9311694D0/en
Priority to EP95203615A priority patent/EP0713286B1/en
Priority to DE69408850T priority patent/DE69408850T2/en
Priority to EP97201692A priority patent/EP0802620B1/en
Priority to US08/255,700 priority patent/US5539293A/en
Priority to ES95203615T priority patent/ES2113154T3/en
Priority to DE69433096T priority patent/DE69433096T2/en
Priority to SG1995002135A priority patent/SG44351A1/en
Priority to EP94304056A priority patent/EP0630097B1/en
Priority to DE69400681T priority patent/DE69400681T2/en
Priority to ES94304056T priority patent/ES2092861T3/en
Priority to US08/587,305 priority patent/US5637972A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P1/00Arrangements for starting electric motors or dynamo-electric converters
    • H02P1/16Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters
    • H02P1/163Arrangements for starting electric motors or dynamo-electric converters for starting dynamo-electric motors or dynamo-electric converters for starting an individual reluctance motor
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/249Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using pulse code
    • G01D5/2492Pulse stream
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42Devices characterised by the use of electric or magnetic means
    • G01P3/44Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K29/00Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/14Electronic commutators
    • H02P6/16Circuit arrangements for detecting position
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02PCONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P6/00Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
    • H02P6/20Arrangements for starting
    • H02P6/22Arrangements for starting in a selected direction of rotation
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K29/00Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/08Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using magnetic effect devices, e.g. Hall-plates, magneto-resistors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K29/00Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices
    • H02K29/06Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices
    • H02K29/10Motors or generators having non-mechanical commutating devices, e.g. discharge tubes or semiconductor devices with position sensing devices using light effect devices
GB939311694A 1993-06-07 1993-06-07 Electric machine rotor prosition encoder Pending GB9311694D0 (en)

Priority Applications (12)

Application Number Priority Date Filing Date Title
GB939311694A GB9311694D0 (en) 1993-06-07 1993-06-07 Electric machine rotor prosition encoder
ES94304056T ES2092861T3 (en) 1993-06-07 1994-06-07 ENCODER OF THE POSITION OF THE ROTOR OF AN ELECTRIC MACHINE.
US08/255,700 US5539293A (en) 1993-06-07 1994-06-07 Rotor position encoder having features in decodable angular positions
DE69408850T DE69408850T2 (en) 1993-06-07 1994-06-07 Method for starting an electrical machine
EP97201692A EP0802620B1 (en) 1993-06-07 1994-06-07 Method of starting electric machines
EP95203615A EP0713286B1 (en) 1993-06-07 1994-06-07 Method of starting an electric machine
ES95203615T ES2113154T3 (en) 1993-06-07 1994-06-07 METHOD TO START AN ELECTRIC MACHINE.
DE69433096T DE69433096T2 (en) 1993-06-07 1994-06-07 Method for starting an electrical machine
SG1995002135A SG44351A1 (en) 1993-06-07 1994-06-07 Electric machine rotor position encoder
EP94304056A EP0630097B1 (en) 1993-06-07 1994-06-07 Electric machine control system with rotor position encoder
DE69400681T DE69400681T2 (en) 1993-06-07 1994-06-07 Control system with coding device for detecting the anchor position in an electrical machine
US08/587,305 US5637972A (en) 1993-06-07 1996-01-16 Rotor position encoder having features in decodeable angular positions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB939311694A GB9311694D0 (en) 1993-06-07 1993-06-07 Electric machine rotor prosition encoder

Publications (1)

Publication Number Publication Date
GB9311694D0 true GB9311694D0 (en) 1993-07-21

Family

ID=10736748

Family Applications (1)

Application Number Title Priority Date Filing Date
GB939311694A Pending GB9311694D0 (en) 1993-06-07 1993-06-07 Electric machine rotor prosition encoder

Country Status (6)

Country Link
US (2) US5539293A (en)
EP (3) EP0630097B1 (en)
DE (3) DE69400681T2 (en)
ES (2) ES2113154T3 (en)
GB (1) GB9311694D0 (en)
SG (1) SG44351A1 (en)

Families Citing this family (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07236296A (en) * 1994-02-22 1995-09-05 Secoh Giken Inc Device for obtaining three-phase position detecting signal with one-position detecting element
EP0801843A1 (en) * 1994-03-03 1997-10-22 Iomega Corporation Servo motor controller using position interpolation
US5982650A (en) * 1996-03-11 1999-11-09 Luce; John W. Intra-grid power director
GB9612148D0 (en) * 1996-06-11 1996-08-14 Switched Reluctance Drives Ltd Rotor position encoder for an electrical machine
GB9613538D0 (en) * 1996-06-27 1996-08-28 Switched Reluctance Drives Ltd Matrix interpolation
FR2754116B1 (en) * 1996-09-27 1998-12-18 Valeo Electronique METHOD AND DEVICE FOR SYNCHRONIZING A THREE-PHASE SYNCHRONOUS MOTOR
GB9623865D0 (en) * 1996-11-15 1997-01-08 Switched Reluctance Drives Ltd An electric machine
GB2319908B (en) * 1996-11-28 2000-09-13 Pwm Drives Limited Self-starting and direction control of two-phase switched reluctance machines
JPH10293042A (en) * 1997-04-16 1998-11-04 Yaskawa Electric Corp Magnetic encoder device
IT1291608B1 (en) * 1997-04-18 1999-01-11 Sisme Immobiliare S P A SINGLE-PHASE SYNCHRONOUS MOTOR ARRANGEMENT WITH PERMANENT MAGNETS
DE19733048A1 (en) * 1997-07-31 1999-02-04 Bosch Gmbh Robert Optical increment encoder
JP3204644B2 (en) * 1998-07-07 2001-09-04 松下電器産業株式会社 Driving device and driving method for electric motor
US6011368A (en) * 1999-03-30 2000-01-04 Dana Corporation Sensorless detection of a locked rotor in a switched reluctance motor
KR100296308B1 (en) * 1999-06-04 2001-07-12 구자홍 Apparatus and method for sensing rotor loacation of switched reluctance motor
FR2820252B1 (en) * 2001-01-31 2004-07-09 Midi Ingenierie BRUSHLESS MOTOR CONTROL SYSTEM
GB0113776D0 (en) * 2001-06-06 2001-07-25 Switched Reluctance Drives Ltd Excitation of switched reluctance motors
ES2834920T3 (en) * 2001-07-16 2021-06-21 Vorwerk Co Interholding Optical rotation detection device for a reluctance motor
US20030042864A1 (en) * 2001-08-31 2003-03-06 Delphi Technologies, Inc. Switched-reluctance motor control
GB0209794D0 (en) * 2002-04-30 2002-06-05 Univ Newcastle Switched reluctance electrical machine
US7084597B2 (en) * 2002-06-03 2006-08-01 Denso Corporation Motor control apparatus
US7312595B2 (en) * 2002-07-09 2007-12-25 Denso Corporation Motor control apparatus
US7161314B2 (en) * 2002-10-07 2007-01-09 Denso Corporation Motor control apparatus having current supply phase correction
DE10246806A1 (en) * 2002-10-08 2004-04-22 Daimlerchrysler Ag Sender wheel for measuring crankshaft revolution rate, angle has variable widths of individual teeth for defined number of successive teeth, limited number of different widths over whole circumference
US6891343B2 (en) * 2003-03-14 2005-05-10 Petersen Technology Corporation Multiphase motors with single point sensing based commutation
GB0310491D0 (en) * 2003-05-07 2003-06-11 Switched Reluctance Drives Ltd Excitation of switched reluctance motors
DE10330912A1 (en) * 2003-07-07 2005-02-03 E.G.O. Elektro-Gerätebau GmbH Sensor device for detecting a triggering movement
US7201244B2 (en) * 2003-10-03 2007-04-10 Letourneau, Inc. Vehicle for materials handling and other industrial uses
EP1583215B1 (en) * 2004-03-29 2016-11-02 Schaeffler Technologies AG & Co. KG Method and apparatus for controlling an electric motor
GB0702975D0 (en) * 2007-02-15 2007-03-28 Switched Reluctance Drives Ltd Control of an electrical machine
DE102007031093B4 (en) * 2007-07-04 2014-02-13 Karl Mayer Textilmaschinenfabrik Gmbh Method for operating a warp knitting machine and warp knitting machine
US7843295B2 (en) 2008-04-04 2010-11-30 Cedar Ridge Research Llc Magnetically attachable and detachable panel system
US8179219B2 (en) 2008-04-04 2012-05-15 Correlated Magnetics Research, Llc Field emission system and method
US8760250B2 (en) 2009-06-02 2014-06-24 Correlated Magnetics Rsearch, LLC. System and method for energy generation
US8174347B2 (en) 2010-07-12 2012-05-08 Correlated Magnetics Research, Llc Multilevel correlated magnetic system and method for using the same
US9105380B2 (en) 2008-04-04 2015-08-11 Correlated Magnetics Research, Llc. Magnetic attachment system
US8779879B2 (en) 2008-04-04 2014-07-15 Correlated Magnetics Research LLC System and method for positioning a multi-pole magnetic structure
US7982568B2 (en) 2009-09-22 2011-07-19 Cedar Ridge Research, Llc. Multilevel correlated magnetic system and method for using same
US8648681B2 (en) 2009-06-02 2014-02-11 Correlated Magnetics Research, Llc. Magnetic structure production
US8816805B2 (en) 2008-04-04 2014-08-26 Correlated Magnetics Research, Llc. Magnetic structure production
US8368495B2 (en) 2008-04-04 2013-02-05 Correlated Magnetics Research LLC System and method for defining magnetic structures
US8115581B2 (en) 2008-04-04 2012-02-14 Correlated Magnetics Research, Llc Techniques for producing an electrical pulse
US8035260B2 (en) * 2008-04-04 2011-10-11 Cedar Ridge Research Llc Stepping motor with a coded pole pattern
US8279032B1 (en) 2011-03-24 2012-10-02 Correlated Magnetics Research, Llc. System for detachment of correlated magnetic structures
US8373527B2 (en) 2008-04-04 2013-02-12 Correlated Magnetics Research, Llc Magnetic attachment system
US9202615B2 (en) 2012-02-28 2015-12-01 Correlated Magnetics Research, Llc System for detaching a magnetic structure from a ferromagnetic material
US9202616B2 (en) 2009-06-02 2015-12-01 Correlated Magnetics Research, Llc Intelligent magnetic system
US9371923B2 (en) 2008-04-04 2016-06-21 Correlated Magnetics Research, Llc Magnetic valve assembly
US8760251B2 (en) 2010-09-27 2014-06-24 Correlated Magnetics Research, Llc System and method for producing stacked field emission structures
US7800471B2 (en) 2008-04-04 2010-09-21 Cedar Ridge Research, Llc Field emission system and method
US8576036B2 (en) 2010-12-10 2013-11-05 Correlated Magnetics Research, Llc System and method for affecting flux of multi-pole magnetic structures
US8917154B2 (en) 2012-12-10 2014-12-23 Correlated Magnetics Research, Llc. System for concentrating magnetic flux
US8937521B2 (en) 2012-12-10 2015-01-20 Correlated Magnetics Research, Llc. System for concentrating magnetic flux of a multi-pole magnetic structure
CN101789673A (en) * 2009-01-24 2010-07-28 冯鲁民 Non computer-controlled switch magnetic resistance motor
US9275783B2 (en) 2012-10-15 2016-03-01 Correlated Magnetics Research, Llc. System and method for demagnetization of a magnetic structure region
US9257219B2 (en) 2012-08-06 2016-02-09 Correlated Magnetics Research, Llc. System and method for magnetization
US9404776B2 (en) 2009-06-02 2016-08-02 Correlated Magnetics Research, Llc. System and method for tailoring polarity transitions of magnetic structures
US8704626B2 (en) 2010-05-10 2014-04-22 Correlated Magnetics Research, Llc System and method for moving an object
CN101958627A (en) * 2009-07-20 2011-01-26 冯鲁民 Photoelectric non-computer-controlled switched reluctance motor
US9711268B2 (en) 2009-09-22 2017-07-18 Correlated Magnetics Research, Llc System and method for tailoring magnetic forces
US8487563B2 (en) * 2009-11-27 2013-07-16 Denso Corporation Drive motor control apparatus for vehicle, motor control system, method for correcting rotation angle of motor, program for performing the same, rotation detecting apparatus
US8638016B2 (en) 2010-09-17 2014-01-28 Correlated Magnetics Research, Llc Electromagnetic structure having a core element that extends magnetic coupling around opposing surfaces of a circular magnetic structure
US8279031B2 (en) 2011-01-20 2012-10-02 Correlated Magnetics Research, Llc Multi-level magnetic system for isolation of vibration
US8702437B2 (en) 2011-03-24 2014-04-22 Correlated Magnetics Research, Llc Electrical adapter system
US9330825B2 (en) 2011-04-12 2016-05-03 Mohammad Sarai Magnetic configurations
CN102790508A (en) * 2011-05-18 2012-11-21 中强光电股份有限公司 Motor module, projection device and motor control method
US8963380B2 (en) 2011-07-11 2015-02-24 Correlated Magnetics Research LLC. System and method for power generation system
US9219403B2 (en) 2011-09-06 2015-12-22 Correlated Magnetics Research, Llc Magnetic shear force transfer device
US8848973B2 (en) 2011-09-22 2014-09-30 Correlated Magnetics Research LLC System and method for authenticating an optical pattern
GB2495546B (en) * 2011-10-14 2014-04-23 Dyson Technology Ltd Method of starting a brushless motor
US9245677B2 (en) 2012-08-06 2016-01-26 Correlated Magnetics Research, Llc. System for concentrating and controlling magnetic flux of a multi-pole magnetic structure
US9298281B2 (en) 2012-12-27 2016-03-29 Correlated Magnetics Research, Llc. Magnetic vector sensor positioning and communications system
DE102013217674A1 (en) * 2013-09-04 2015-03-05 Krones Ag Device for aligning components of a rotary machine
GB201323081D0 (en) * 2013-12-27 2014-02-12 Valeo Air Man Uk Ltd Motor starting methods
GB201323080D0 (en) * 2013-12-27 2014-02-12 Valeo Air Man Uk Ltd Motor starting methods
US9829501B2 (en) * 2014-04-25 2017-11-28 Texas Instruments Incorporated Rotational sensing based on inductive sensing
CN104459539B (en) * 2014-12-02 2017-06-16 国电南瑞科技股份有限公司 A kind of many number of pole-pairs generator's power and angle measuring methods
ITUB20153132A1 (en) * 2015-08-14 2017-02-14 Zwei S R L Passage barrier system
CN105459852B (en) * 2015-12-09 2017-12-19 北京新能源汽车股份有限公司 The uphill starting method and apparatus of switch resistance magneto driving electric automobile
JP2019020265A (en) * 2017-07-18 2019-02-07 株式会社デンソー Rotation detection device
CN107276463A (en) * 2017-08-09 2017-10-20 中国科学院宁波材料技术与工程研究所 A kind of detecting apparatus for rotor position of four phase switch reluctances motor
CN111537005B (en) * 2020-05-09 2022-03-25 浙江众邦机电科技有限公司 Method for processing signal loss of incremental photoelectric encoder

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378741A (en) * 1964-09-18 1968-04-16 Ibm Digital coarse and fine stepping motor control using an encoder for coarse position
US3540040A (en) * 1966-12-29 1970-11-10 Electro Dynamics & Telecom Ltd Digital telemetry transducers
US4107594A (en) * 1977-01-24 1978-08-15 Teletype Corporation Step motor velocity control
JPH0632582B2 (en) * 1982-07-15 1994-04-27 株式会社三協精機製作所 DC brushless electric motor
IE56528B1 (en) * 1985-01-15 1991-08-28 John V Byrne Electrical drive systems incorporating variable reluctance motors
KR900005669B1 (en) * 1985-03-20 1990-08-03 니뽕 빅터 가부시끼가이샤 Motor drive device
JPS6223352A (en) * 1985-07-15 1987-01-31 Shikoo Giken:Kk One-phase-energized brushless motor
US4697125A (en) * 1986-03-24 1987-09-29 Performance Controls, Inc. Method and apparatus for determining shaft position and for providing commutation signals
JPS6331488A (en) * 1986-07-25 1988-02-10 Oki Electric Ind Co Ltd Driving method dc brushless motor
DE3630312A1 (en) * 1986-09-05 1988-03-17 Thomson Brandt Gmbh CIRCUIT ARRANGEMENT FOR ELECTRONIC COMMUTATION OF A DC MOTOR
US4737674A (en) * 1986-10-17 1988-04-12 Shicoh Engineering Co., Ltd. Single phase brushless motor with a core
SE8802394D0 (en) * 1988-06-27 1988-06-27 Electrolux Mecatronik Ab RELUCTANCE
GB2228842B (en) * 1989-01-09 1993-01-06 Schlumberger Ind Ltd Relative position transducer
US5107159A (en) * 1989-09-01 1992-04-21 Applied Motion Products, Inc. Brushless DC motor assembly with asymmetrical poles
DE4036024C1 (en) * 1990-11-13 1992-02-27 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
US5111095A (en) * 1990-11-28 1992-05-05 Magna Physics Corporation Polyphase switched reluctance motor
KR100234731B1 (en) * 1992-02-21 1999-12-15 구자홍 Position detecting device of a srm
GB9225846D0 (en) * 1992-12-10 1993-02-03 Switched Reluctance Drives Ltd Further improvements in electric machines

Also Published As

Publication number Publication date
ES2113154T3 (en) 1998-04-16
US5637972A (en) 1997-06-10
US5539293A (en) 1996-07-23
DE69400681D1 (en) 1996-11-14
DE69433096T2 (en) 2004-06-09
ES2092861T3 (en) 1996-12-01
EP0802620A1 (en) 1997-10-22
EP0713286B1 (en) 1998-03-04
DE69408850T2 (en) 1998-06-25
SG44351A1 (en) 1997-12-19
EP0802620B1 (en) 2003-08-27
EP0630097B1 (en) 1996-10-09
DE69408850D1 (en) 1998-04-09
EP0630097A3 (en) 1995-04-05
DE69433096D1 (en) 2003-10-02
EP0630097A2 (en) 1994-12-21
DE69400681T2 (en) 1997-02-13
EP0713286A2 (en) 1996-05-22
EP0713286A3 (en) 1996-06-05

Similar Documents

Publication Publication Date Title
GB9311694D0 (en) Electric machine rotor prosition encoder
EP0730335A3 (en) Electric rotating machine
GB2281665B (en) Rotor for a rotating electric machine
EP0740397A3 (en) Stator structure for rotary electric machine
HU9701781D0 (en) Gas-cooled electric machine
GB9524725D0 (en) Rotor for an electric machine
GB9326353D0 (en) Electrical machines
GB9007205D0 (en) Dynamo electric machine
EP0634829A3 (en) Rotary electric machine.
PL323655A1 (en) Gas-cooled electric machine
SG54511A1 (en) Rotor position encoder for an electrical machine
GB2282490B (en) Rotor for electrical machines
GB2282489B (en) Rotor for electrical machines with fan
GB9304542D0 (en) Electric motors
GB2307110B (en) Rotor for a rotating electric machine
PL319719A1 (en) Gas-cooled electric machine
GB2268546B (en) Electric machines
GB9000454D0 (en) Stator for a dynamo electric machine
GB2278504B (en) Rotary electrical machines
RU1837374C (en) Electric machine rotor
GB2283372B (en) Electric machine
AU1289292A (en) Electric machine
GB9307529D0 (en) Rotating electrical machine
RU1769300C (en) Electrical machine stator
RU1769304C (en) Electrical machine stator